800136 has 24 divisors (see below), whose sum is σ = 2167230. Its totient is φ = 266688.

The previous prime is 800131. The next prime is 800143. The reversal of 800136 is 631008.

It can be written as a sum of positive squares in only one way, i.e., 799236 + 900 = 894^2 + 30^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (800131) by changing a digit.

800136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5485 + ... + 5628.

2⁸⁰⁰¹³⁶ is an apocalyptic number.

It is an amenable number.

800136 is an abundant number, since it is smaller than the sum of its proper divisors (1367094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800136 is a wasteful number, since it uses less digits than its factorization.

800136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11125 (or 11118 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 800136 is about 894.5032140803. The cubic root of 800136 is about 92.8370368415.

The spelling of 800136 in words is "eight hundred thousand, one hundred thirty-six".